<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
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    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <button onclick="print()">打印</button>
    <script>
        
        function print(){
            let timer;
            clearTimeout(timer);
            timer = setTimeout(() => {
                console.log("打印一份");
            }, 1000);
        }
    </script>
</body>
</html>